Thionyl Chloride → 3,4,5-Trihydroxybenzonitrile

HRID 2081182

反応式

HRID 2081182 の反応式
[C:1]([NH2:12])(=O)[C:2]1[CH:10]=[C:8]([OH:9])[C:6]([OH:7])=[C:4]([OH:5])[CH:3]=1.S(Cl)(Cl)=O>C(OCC)(=O)C>[C:1](#[N:12])[C:2]1[CH:3]=[C:4]([OH:5])[C:6]([OH:7])=[C:8]([OH:9])[CH:10]=1

参加物

4

反応条件

温度
90 °C

実験手順

A reaction mixture containing 23.5 g. of gallamide, 180 ml. of ethyl acetate and 35 ml. of thionylchloride was refluxed for about 18 hours. The volatile contents were removed by evaporation in vacuo and the resulting residue dissolved in 215 ml. of water. This aqueous solution was heated to about 90° C. until the evolution of gas had ceased. The aqueous solution was filtered through charcoal and the water removed from the filtrate by evaporation. 18 g. of Gallonitrile were obtained melting at about 219° C. with decomposition (86% yield). Other nitriles useful as starting materials can be prepared similarly.

後処理

  1. additionA reaction mixture containing 23.5 g
  2. customThe volatile contents were removed by evaporation in vacuo
  3. dissolutionthe resulting residue dissolved in 215 ml
  4. filtrationThe aqueous solution was filtered through charcoal
  5. customthe water removed from the filtrate by evaporation

出典と根拠

ORDレコード
ord-9b480e3218cb47d1a2f9693d98cc55ab
出典データセット
uspto-grants-1993_02
特許番号
US05183828

関連ノート

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